using 1w resistors instead of 1/4w?

[zwound]

I'm making an attempt to build a proco rat replica off www.tonepad.com

i'm guessing i need to use 1/4w as a standard pedal building resistor gauge...but they don't have them in the values i'd want (they don't have 1k, or 1.5k)


will there be any negative effects if i use 1w rating resistors?

[MetalGod]

no negative effects by using 1w resistors in a pedal other than the amount of space they take up.

[Andre]

They will have no influence on the sound, but if you use the Tonepad PCB, you will perheps have to drill bigger holes and you will have to mount the resistors standing up.

Succes

André

[Bernardduur]

I only noticed a postive effect when used in higher voltage equipment; high as in 300V

[zwound]

thanks guys!

[zwound]

btw, is there any difference between carbon and film resistors?

[Sir H C]

Mostly noise issues.  Carbon are higher noise, and you have to be more careful about soldering them as you can change their values if you get them too hot.  There are comments about a difference in sound on RG's site.

[MetalGod]

btw, is there any difference between carbon and film resistors?

Probably not in guitar pedals - it's thought that CC resistors influence tone when there is a high voltage across them (i.e. plate loads in valve amps). 

I remember rewiring my AC20 with CC resistors in the spots with high voltages across the resistors and there was a noticeably sweeter tone with more harmonic content.  Before that the amp sounf=ded good, but a little flat and uninspiring.

I'd say it's worth trying in a pedal - worst case scenario is that you waste a few quid in resistors.

[R.G.]

it's thought that CC resistors influence tone when there is a high voltage across them (i.e. plate loads in valve amps).

Actually, it's not thought that CCs influence tone, it's a calculable fact. Read "Use of Carbon Comp Resistors for Magic Mojo" at GEOFEX, http://www.geofex.com, 3/22/02.

It's not high voltage across the resistor - it's high voltage signal swings across the resistor.

I'd say it's worth trying in a pedal - worst case scenario is that you waste a few quid in resistors.

You can if you want, but the same math that says that they cause some sweetening in high voltage amps also says they definitely will not in 9V effects. Buy beer instead.